How much energy in Joules is released by burning a cheese ball that raises the temperature of

74.2 g water from 24°C to 41°C? How many Calories is this?

1. The heat energy in Joules is 5280.22J

2. The heat energy in calories is 1261.4 calories

Explanation:

Step 1:

Data obtained from the question.

The following data were obtained from the question:

Mass of water (M) = 74.2 g

Initial temperature (T1) = 24°C

Final temperature (T2) = 41°C

Change in temperature (ΔT) = T2 - T1 = 41 - 24 = 17°C

Heat energy (Q) =?

Recall:

Specific heat capacity of water = 4.186 J/g°C

Step 2:

Determination of the energy in Joules.

This is illustrated below:

Q = MCΔT

Q = 74.2 x 4.186 x 17

Q = 5280.22J

Step 3:

Conversion of the heat energy in Joules to calories. This is illustrated below:

4.186 J = 1 calorie

Therefore, 5280.22J = 5280.22/4.186 = 1261.4 calories

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Explanation: